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XAFS study of the state of platinum in a sulfated zirconia catalyst

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Abstract

EXAFS and XANES data show that platinum, present in a Pt-SO4-ZrO2 catalyst, exists in the metallic state following calcination in air at 725°C for 2 h, and that no detectable change in the valence state of Pt occurs during use of the catalyst for hydrocarbon conversion at 150°C under hydrogen pressure. The metallic Pt is present in reasonably large crystals where the average coordination number of Pt is about 12.

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Authors and Affiliations

  1. Institute for Mining and Minerals Research, University of Kentucky, 40506, Lexington, KY, USA

    J. Zhao & Gerald P. Huffman

  2. Center for Applied Energy Research, University of Kentucky, 3572 Iron Works Pike, 40511, Lexington, KY, USA

    Burtron H. Davis

Authors
  1. J. Zhao
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  2. Gerald P. Huffman
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  3. Burtron H. Davis
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Zhao, J., Huffman, G.P. & Davis, B.H. XAFS study of the state of platinum in a sulfated zirconia catalyst. Catal Lett 24, 385–389 (1994). https://doi.org/10.1007/BF00811811

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  • DOI: https://doi.org/10.1007/BF00811811

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